López Anido, F. S., V. P. Cravero, E. A. Martín, I. Crippa, and E. L. Cointry. “Differential Expression of the Genetic Variance in F2 Populations of Reciprocal Crosses of Artichoke”. Spanish Journal of Agricultural Research, Vol. 8, no. 3, Sept. 2010, pp. 679-85, doi:10.5424/sjar/2010083-1265.